<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Document</title>
    <style>
      div {
          /* 变圆 */
        border-radius: 50%;  
        /* border-radius:55px/15px; 椭圆倒角 */
        background-color:hotpink;
        border: 15px solid transparent;
        width: 250px;
        height: 250px;
        text-align: center;
      }
      #a {
        border-image: url(bg.png) ;
      }
      #b{
          margin-top: 20px;
          background:url(bg.png)  no-repeat;
      }
    </style>
  </head>
  <body>
    <div id="a">
      ???
    </div>
    <div id="b">
            在这里停顿
          </div>
  </body>
</html>
